Li5Mn2CoO8
Li5Mn2CoO8 is a metastable, semiconducting lithium transition-metal oxide used primarily in advanced materials research for energy storage applications.
About Li5Mn2CoO8
Li5Mn2CoO8 belongs to the class of layered lithium transition-metal oxides, characterized by its semiconducting electronic nature. As a metastable compound, it represents a complex structural arrangement within the lithium-manganese-cobalt-oxygen system, offering unique pathways for ion mobility and structural transformation.
This material is of significant interest in materials science due to its structural diversity, with numerous reported configurations across major databases. It serves as a subject of investigation for researchers aiming to understand the stability and performance limits of lithium-rich oxides in electrochemical systems.
Key Properties
Cross-validated computational properties for Li5Mn2CoO8, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for Li5Mn2CoO8, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P2 (No. 3) | monoclinic | 1.36 | 0.0389 | -6.694 | 3.90 |
| C2 (No. 5) | monoclinic | 1.26 | 0.0396 | -6.693 | 3.89 |
| P1 (No. 1) | triclinic | 1.58 | 0.0406 | -6.693 | 3.93 |
| P1 (No. 1) | triclinic | 0.00 | 0.0422 | -6.691 | 3.92 |
| P1 (No. 1) | triclinic | 1.47 | 0.0447 | -6.688 | 3.94 |
| P-1 (No. 2) | triclinic | 0.91 | 0.0453 | -6.688 | 3.97 |
| C2/m (No. 12) | monoclinic | 1.14 | 0.0468 | -6.686 | 3.94 |
| C2/m (No. 12) | monoclinic | 1.22 | 0.0469 | -6.686 | 3.94 |
| C2/m (No. 12) | monoclinic | 1.04 | 0.0482 | -6.685 | 3.94 |
| P2/m (No. 10) | monoclinic | 1.39 | 0.0485 | -6.685 | 3.93 |
| P2/m (No. 10) | monoclinic | 0.06 | 0.0507 | -6.682 | 3.99 |
| P-1 (No. 2) | triclinic | 1.00 | 0.0507 | -6.682 | 3.94 |
Applications
Where Li5Mn2CoO8 is used.
Frequently Asked Questions
Common questions about Li5Mn2CoO8, answered from cross-validated data.
What is Li5Mn2CoO8?
Li5Mn2CoO8 is a metastable, semiconducting lithium transition-metal oxide used primarily in advanced materials research for energy storage applications.
What is Li5Mn2CoO8 used for?
What is the band gap of Li5Mn2CoO8?
Is Li5Mn2CoO8 a metal, semiconductor, or insulator?
Is Li5Mn2CoO8 thermodynamically stable?
What is the crystal structure of Li5Mn2CoO8?
What is the density of Li5Mn2CoO8?
How many polymorphs of Li5Mn2CoO8 are known?
What elements does Li5Mn2CoO8 contain?
Where does the data for Li5Mn2CoO8 come from?
How It Compares
Within the layered lithium transition-metal oxides class.
Within the diverse family of layered lithium transition-metal oxides, Li5Mn2CoO8 occupies a distinct niche compared to more common, commercially established materials like LiCoO2 or LiMn2O4. While those siblings are frequently utilized for their robust performance in batteries, Li5Mn2CoO8 is distinguished by its metastable nature and complex stoichiometry, positioning it as a specialized candidate for fundamental studies into phase evolution and structural complexity rather than immediate large-scale industrial deployment.
Related Compounds
Other Layered Lithium Transition-Metal Oxides in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
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